Booklet Maker with Spaced Crease Rollers

Abstract

Embodiments described herein include as apparatus for folding printed sheets. The apparatus including first crease roller and a second crease roller longitudinally aligned with the first crease roller. A spacing device separating the first and second crease rollers to form a nip space therebetween. A crease blade is disposed adjacent the nip space and adapted to urge the sheets toward the nip space.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to automated booklet makers, in which sheets forming a booklet are folded by passing through a pair of crease rollers.[0003]2. Brief Discussion of Related Art[0004]Booklet makers are well-known devices for forming folded booklets which are stapled along the crease thereof. It is becoming common to include booklet makers in conjunction with office-range printers. The word “printer” as used herein encompasses any apparatus, such as a copier, digital copier, bookmaking machine, facsimile machine, multifunction machine, etc. which performs a print outputting function for any purpose. In basic form, a booklet maker includes a slot for accumulating processed sheets, as would be produced by a printer. The accumulated sheets, forming the pages of a booklet, are positioned within the stack so that a stapler mechanism and complementary anvil can staple the stack precisely along the intended crease line. The creased and sta...

AI Technical Summary

Problems solved by technology

Due to variations in surface roughness of sheets and the print material, the friction between the outer sheet and the underlying sheet may not be sufficient.

Therefore, the top sheet may be torn or otherwise damaged as it passes through the crease rollers.

Such tear off damage typically leads to a jam which requires clearing by an operator and significantly slows the booklet making process.

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